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Related Experiment Video

Updated: Apr 18, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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High-power all-fiberized superfluorescent source with distributed side-coupled cladding-pumped fiber.

Yingye An, Jianqiu Cao, Zhihe Huang

    Applied Optics
    |January 22, 2015
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    Summary

    A new fiber laser design achieved 102 W of output power with a broad 10 nm bandwidth. Optimizing fiber length shows potential for a 600 W superfluorescent source, advancing high-power fiber laser technology.

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    Area of Science:

    • Optics and Photonics
    • Fiber Lasers
    • High-Power Systems

    Background:

    • Superfluorescent sources are crucial for applications requiring broad spectral bandwidth and high output power.
    • Yb-doped fiber amplifiers are key components in modern laser systems due to their efficiency and spectral properties.
    • Scaling output power in fiber lasers presents challenges related to thermal management and optical feedback.

    Purpose of the Study:

    • To demonstrate an all-fiberized broadband superfluorescent source using a novel cladding-pumped Yb-doped fiber configuration.
    • To investigate the power scalability of this superfluorescent source through numerical analysis.
    • To identify key parameters, such as active fiber length, for achieving higher output powers.

    Main Methods:

    • Utilizing a distributed side-coupled cladding-pumped Yb-doped fiber architecture.
    • Employing angle-cleaved output ends to manage optical feedback and enhance power extraction.
    • Conducting numerical simulations to analyze the influence of active fiber length on power scalability.

    Main Results:

    • Achieved a combined output power of 102 W from the superfluorescent source.
    • Measured a spectral bandwidth exceeding 10 nm.
    • Numerical analysis indicated that active fiber length is a critical factor for power scaling, alongside optical feedback.

    Conclusions:

    • The demonstrated all-fiberized superfluorescent source exhibits promising high-power capabilities.
    • Optimizing active fiber length is essential for realizing significantly higher output powers, with potential for a 600 W system.
    • This work provides a viable scheme for developing next-generation high-power, broadband fiber laser sources.